[1]张望喜,谭泽腾,薛 凯.基于ABAQUS 的钢筋混凝土收缩徐变分析[J].西安建筑科技大学学报:自然科学版,2015,(03):347-353.[doi:10.15986/j.1006-7930.2015.03.007]
 ZHANG Wangxi,TAN Zeteng,XUE Kai.Analysis of shrinkage and creep of reinforced concrete based on ABAQUS[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,(03):347-353.[doi:10.15986/j.1006-7930.2015.03.007]
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基于ABAQUS 的钢筋混凝土收缩徐变分析()
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西安建筑科技大学学报:自然科学版[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年03期
页码:
347-353
栏目:
出版日期:
2015-06-30

文章信息/Info

Title:
Analysis of shrinkage and creep of reinforced concrete based on ABAQUS
文章编号:
1006-7930(2015)03-0347-07
作者:
张望喜谭泽腾薛 凯
(湖南大学土木工程学院,湖南 长沙 410082)
Author(s):
ZHANG Wangxi TAN Zeteng XUE Kai
(Civil Engineering College of Hunan University, Changsha 410082,China)
关键词:
收缩徐变有限元分析 内力重分布
Keywords:
shrinkage creep finite element analysis internal force redistribution
分类号:
TU375
DOI:
10.15986/j.1006-7930.2015.03.007
文献标志码:
A
摘要:
使用MATLAB 自带的非线性拟合函数LSQCURVEFIT 基于CEB-FIP 模型拟合出徐变曲线,然后通过ABAQUS 有限元分析软件二次设计了收缩徐变计算程序.通过ABAQUS 软件进行配筋柱受收缩徐变引起的内力重分布的分析,并与文献结果进行对比,验证了计算结果及程序的有效性,并对配筋柱进行了不同参数的分析.计算了单层单跨结构在徐变收缩影响下的内力重分布,考虑了梁柱因先后施工导致的加载龄期不同对结构内力重分布的影响.分析结果表明,配筋柱的内力重分布对环境湿度及配筋率较为敏感,单层单跨框架梁端内力重分布受收缩徐变影响较小.
Abstract:
Creep curve is fitted by using the nonlinear fitting function LSQCURVEFIT in MATLAB based on CEB - FIP model, and a shrinkage and creep calculating program and designed by using ABAQUS finite element analysis software. A reinforced concrete column is based on ABAQUS to conduct the analysis of internal force caused by shrinkage and creep, and the effectiveness of calculation results and program was verified by comparing with the literature results, so that the analysis of the reinforced concrete column for different parameters is performed. A single span frame is computed by the internal force redistribution under the influence of creep and shrinkage, and effects of loading age which is caused by successively construction on internal force redistribution of beams and columns are considered. The results show that internal force redistribution of a reinforced concrete column is sensitive to humidity and reinforcement ratio, the effect of creep and shrinkage on internal force redistribution of the single story single span frame is small.

参考文献/References:

[1] BA.ANT Z P, LI G H. Comprehensive database on concrete creep and shrinkage[R]. Structure Engineering Report, 2008: 2-8.

[2] 丁文胜, 吕志涛, 孟少平, 等. 混凝土收缩徐变预测模型的分析比较[J].桥梁建设, 2004(6): 13-16.

DING Wensheng, Lü Zhitao, MENG Shaoping, et al. Analysis and comparison of prediction models for concrete shrinkage and creep[J]. Bridge Construction. 2004(6): 13-16.

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[6] 林超伟, 王兴法, 陈勤, 等. 长富金茂大厦混凝土收缩徐变分析及结构设计[J].建筑结构. 2011(05): 43-45.

LIN Chaowei, WANG Xingfa, CHEN Qing, et al. Structural design and concrete shrinkage and creep analysis of Changfu Jinmao Building[J].Building Structure. 2011(05): 43-45.

[7] 周履, 陈永春. 收缩徐变[M]. 北京:中国铁道出版社, 1994: 145-175.

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备注/Memo

备注/Memo:
收稿日期:2014-11-04   修改稿日期:2014-05-25
基金项目:国家自然科学基金项目(51078133、51208190、51338004)资助
作者简介:张望喜(1971-),男,博士,副教授,主要从事砼及砌体结构空间分析与抗震设计方面研究.E-mail:wxizhang2000@163.com
更新日期/Last Update: 2015-09-01